JP2017109673A - Cowl structure of saddle-riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cowl structure of a saddle-riding type vehicle which can effectively discharge exhaust air passed through a radiator outside a vehicle from a lateral side of the radiator.SOLUTION: A cowl structure of a saddle-riding type vehicle comprises: left and right middle cowls 40 which cover lateral sides of a vehicle body frame; and a radiator R which is covered by the left and right middle cowls 40 in a vehicle side view on a front side of an engine E located below a fuel tank T having a knee grip part T1 held by knees of an operator, introduces travel wind from a front opening between the lift and right middle cowls 40 and discharges the travel wind rearwards. The middle cowl 40 comprises an inner middle cowl 50 located in a vehicle width direction inner side and an outer middle cowl 60 located in a vehicle width direction outer side. The inner middle cowl 50 comprises an opening 51 which is opened toward the outer middle cowl 60 side on a lateral side of the radiator R, and an air channel formation part 52 which forms an air channel D, which guides exhaust air A2 from the radiator R to the exterior of a vehicle, rearwards from the opening 51 between itself and the outer middle cowl 60.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a cowl structure for a saddle riding type vehicle.

Conventionally, for example, as seen in Patent Document 1, a front cowl (72) covering the front of the body frame (11) and left and right middle cowls (78 (L, R)) covering the sides of the body frame (12). When,
A fuel tank (56) having a knee grip portion located in front of the seat (15) on which the driver straddles and being sandwiched between the knees of the driver;
An engine (13) disposed below the fuel tank (56);
The front side of the engine (13) is covered with left and right middle cowls (78 (L, R)) when viewed from the side of the vehicle (FIG. 1), and left and right middle cowls (78 (L) when viewed from the front of the vehicle (FIG. 2). , R)), and a radiator (51) that releases the heat of the engine (13) by taking the running wind from the front opening (112) between the left and right middle cowls and discharging it to the rear. A saddle type vehicle is known.
As described in the paragraph 0044 and FIG. 7 of the publication, most of the traveling wind taken in the radiator air intake 112 passes through the radiator unit 51 and cools the radiator unit 51, but part of it is a middle part. It flows to the outside of the vehicle through the separate openings 138L, 138R formed between the cowls 78L, 78R and the layer cowls 123L, 123R provided at the rear of these middle cowls 78L, 78R.

JP 2010-042755 A

In the cowl structure of the conventional saddle riding type vehicle described above, part of the traveling wind taken in the radiator air intake 112 flows to the outside of the vehicle through the separate openings 138L and 138R, but most of the traveling wind is generated by the radiator unit. It passes through 51 and flows to the rear of the radiator unit 51.
However, depending on the structure of the saddle-ride type vehicle, it may be desired to discharge the exhaust air that has passed through the radiator from the side of the radiator to the outside of the vehicle.
In such a case, in the conventional cowl structure described above, the separate openings 138L and 138R are only provided on the left and right rear sides of the radiator 51, and the middle cowl (78 (L, R)) covering the side of the radiator 51 is provided. Since no opening is provided, it is difficult to efficiently exhaust the exhaust air that has passed through the radiator 51 from the side of the radiator 51 to the outside of the vehicle.

  The problem to be solved by the present invention is to provide a cowl structure for a straddle-type vehicle that can efficiently exhaust the exhaust air that has passed through the radiator from the side of the radiator to the outside of the vehicle.

In order to solve the above problems, the cowl structure of the saddle riding type vehicle of the present invention is
A front cowl covering the front of the body frame, left and right middle cowls covering the sides of the body frame,
A knee grip member having a knee grip portion located in front of the seat over which the driver straddles and sandwiched between the knees of the driver;
An engine disposed below the knee grip member;
On the front side of this engine, it is covered with the left and right middle cowls when viewed from the side of the vehicle, and is arranged between the left and right middle cowls when viewed from the front of the vehicle. A radiator that releases the heat of the engine by discharging; and
In a saddle-ride type vehicle equipped with
The middle cowl includes an inner middle cowl disposed on the inner side in the vehicle width direction, and an outer middle cowl disposed on the outer side in the vehicle width direction,
The inner middle cowl is disposed between the outer middle cowl and an opening that opens toward the outer middle cowl side on the side of the radiator, and is exhausted from the radiator toward the rear from the opening. And an air passage forming portion for forming the air passage.
According to the cowl structure of the saddle-ride type vehicle, the opening is provided on the side of the inner middle cowl that covers the side of the radiator toward the outer middle cowl, and further toward the rear. Since the air passage from the radiator to the outside of the vehicle is formed by the air passage forming portion between the inner middle cowl and the outer middle cowl, the exhaust air that has passed through the radiator passes through the inner middle cowl opening to the inner middle cowl. The air is efficiently discharged out of the vehicle through an air passage formed between the cowl and the outer middle cowl.
That is, according to the cowl structure of the saddle riding type vehicle, the exhaust air that has passed through the radiator can be efficiently discharged from the side of the radiator to the outside of the vehicle.

In the cowl structure of this saddle riding type vehicle,
The inner middle cowl opening and the air passage forming part can all be covered with the outer middle cowl in a vehicle side view.
With this configuration, the air path formed between the air path forming part and the outer middle cowl between the inner middle cowl and the outer middle cowl from the opening of the inner middle cowl to the end of the outer middle cowl is efficient. Therefore, the exhaust air from the radiator can be discharged more efficiently. In addition, since the air path forming portion is not visible in a side view, the appearance is improved.

In the cowl structure of this saddle riding type vehicle,
The inner middle cowl can be configured to extend to the knee grip member at least in the rear upper part of the air passage forming portion.
If there is a gap between the inner middle cowl and the knee grip member at the rear upper part of the air passage forming portion, the exhausted air discharged from the air passage to the outside of the vehicle is between the inner middle cowl and the knee grip member. There is a risk of flowing into the vehicle again through the gap between them.
On the other hand, when the inner middle cowl extends to the knee grip member at least in the rear upper part of the air passage forming portion, the exhaust air discharged from the air passage to the outside of the vehicle flows into the vehicle again. It becomes difficult to occur.

In the cowl structure of this saddle riding type vehicle,
The inner middle cowl has an overhanging portion that protrudes outward in the vehicle width direction from the air passage forming portion toward the knee grip portion between the air passage forming portion and the knee grip portion. It can be configured.
With this configuration, exhaust air that may flow from the air passage toward the knee grip portion is guided outward in the vehicle width direction by the overhanging portion, and therefore flows away from the driver's legs. Become easier

In the cowl structure of this saddle riding type vehicle,
In addition to the opening, the middle cowl has a slit-like opening that extends obliquely upward toward the rear from the vicinity of the radiator in a side view, and discharges exhaust air from the radiator to the outside of the vehicle, and the inner middle cowl And a third cowl that is disposed adjacent to the outer middle cowl to form the slit-shaped opening.
If comprised in this way, since an exhaust wind will be discharged | emitted also from the said slit-shaped opening, the exhaust wind which passed the radiator can be discharged | emitted more efficiently from the side of a radiator to the vehicle exterior.
Moreover, the slit-shaped opening can be formed by the outer middle cowl and the third cowl disposed adjacent thereto. That is, since the slit-shaped opening can be formed by the edge of the outer middle cowl and the edge of the third cowl, it is not necessary to separately prepare a cowl provided with the slit-shaped opening.

In the cowl structure of this saddle riding type vehicle,
The inner middle cowl can be configured to have a guide surface that guides exhaust air from the radiator toward the outside in the vehicle width direction at the rear end portion of the slit-shaped opening.
If comprised in this way, while the exhaust efficiency of the exhaust_gas | exhaustion to the exterior through a slit-shaped opening can be improved, an exhaust_gas | exhaustion can be guide | induced to the direction away from a driver | operator's leg.

1 is a front view showing an example of a saddle-ride type vehicle that employs an embodiment of a cowl structure according to the present invention. Similarly side view. FIG. The partial expanded side view of the state which removed the outer middle cowl. The elements on larger scale of FIG. FIG. 6 is a partially omitted cross-sectional view of FIG. FIG. It is a figure which shows an inner middle cowl, (a) is a top view, (b) is a side view, (c) is cc expanded end elevation in FIG. (B). Side view of the outer middle cowl.

  Embodiments of a cowl structure for a saddle riding type vehicle according to the present invention will be described below with reference to the drawings. It should be noted that the drawings are viewed in the direction of the reference numerals. In the following description, front and rear, left and right, and top and bottom are in accordance with the direction seen from the driver, and if necessary, the front of the vehicle is Fr, the rear is Rr, and the left is L, right side is R, upper side is U, and lower side is D. In each drawing, the same reference numerals are given to the same or corresponding parts.

The straddle-type vehicle 1 shown in FIGS. 1 to 3 includes a front cowl 30 that covers the front of the body frame 10 and left and right middle cowls 40 that cover the sides of the body frame 10. Further, a fuel tank T is provided as a knee grip member having a seat S over which the driver straddles and a knee grip portion T1 which is in front of the seat S and is sandwiched between the knees of the driver.
A water-cooled engine E is disposed below the knee grip member T, and a radiator R is disposed on the front side of the engine E.

  The radiator R is covered with the left and right middle cowls 40 when viewed from the side of the vehicle (FIG. 2), and is disposed between the left and right middle cowls 40 when viewed from the front of the vehicle (FIG. 1). The heat of the engine E is released by taking the running wind from 41 and discharging it backward.

  The body frame 10 is provided with a head pipe 11 at the front end, and a steering device 20 is supported on the head pipe 11 so as to be capable of rotating left and right. The steering device 20 has a pair of front forks 22 that are rotated by a handle 21, and a front wheel WF is supported at the lower end of the front forks 22.

The vehicle body frame 10 has a main frame 12 extending rearward from the head pipe 11, and the engine E and the radiator R are fixed to the main frame 12.
A swing arm 13 is swingably provided at the rear portion of the main frame 12 by a pivot 12p, and a rear wheel WR driven by the engine E is supported at the rear end of the swing arm 13.
A step ST on which the driver puts his / her foot is provided at the lower rear portion of the main frame 12.
Reference numeral 31 denotes a lower cowl that covers the lower side of the engine E. Reference numeral 32 denotes a license plate stay having a plate portion 33 that supports a license plate (not shown) below the front side of the headlight HL.

  As shown in FIGS. 6 and 7, the cowl structure of the saddle riding type vehicle according to this embodiment includes an inner middle cowl 50 (FIG. 8) in which the middle cowl 40 is disposed on the inner side in the vehicle width direction, and the vehicle width. The outer middle cowl 60 (FIG. 9) arrange | positioned on the direction outer side is provided. The middle cowl 40 also includes a third cowl 70 described later.

  As shown in FIGS. 4 and 5, the inner middle cowl 50 is formed between the opening 51 that opens toward the outer middle cowl 60 on the side of the radiator R and the outer middle cowl 60. And an air passage forming portion 52 that forms an air passage D of the exhaust air A2 from the radiator R toward the outside of the vehicle.

According to the cowl structure of the saddle-ride type vehicle, the opening 51 is provided on the side of the radiator R of the inner middle cowl 50 that covers the side of the radiator R toward the outer middle cowl 60. Since the air path D of the exhaust air A2 from the radiator R toward the rear from the part 51 is formed by the air path forming part 52 between the inner middle cowl 50 and the outer middle cowl 60, it passes through the radiator R. The exhausted air A2 is efficiently discharged from the opening 51 of the inner middle cowl 50 to the outside of the vehicle through an air passage D that is also called a pseudo duct (quasi-duct) formed between the inner middle cowl 50 and the outer middle cowl 60. Will be.
That is, according to the cowl structure of the saddle riding type vehicle, the exhaust air A2 that has passed through the radiator R can be efficiently discharged from the side of the radiator R to the outside of the vehicle.

  As shown mainly in FIG. 7, with respect to the vehicle width direction, the radiator R is arranged so that most of the radiator R faces the front opening 41 between the left and right middle cowls 40, and the traveling wind A1 taken from the front opening 41 Most of the air passes through the radiator R, and the exhaust air A2 is exhausted from the opening 51 of the inner middle cowl 50 through the air passage D to the outside of the vehicle.

As shown in FIG. 4, the opening 51 is provided above and above the portion facing the upper portion of the radiator R, so that hot air above the radiator R can be discharged even when the vehicle is not necessarily traveling.
As shown mainly in FIG. 4 and FIG. 5, the air passage forming portion 52 is formed in a fin shape obliquely upward from the front to the rear so as to cross the opening 51 in a side view.

As shown in FIG. 2, the opening 51 and the air passage forming portion 52 of the inner middle cowl 50 are all covered with the outer middle cowl 60 in a vehicle side view.
With this configuration, a pseudo-duct-like wind formed between the air path forming portion 52 and the outer middle cowl 60 between the inner middle cowl 50 and the outer middle cowl 60 from the opening 51 of the inner middle cowl 50. Since the path D can be efficiently formed up to the end 61 of the outer middle cowl 60, the exhaust air A2 from the radiator R can be discharged more efficiently. Further, since the air passage forming part 52 is not visible in a side view, the appearance is clear and the appearance is improved.

As shown in FIGS. 4 and 5, the inner middle cowl 50 extends to the knee grip member T at least in the upper rear portion of the air passage forming portion 52.
If there is a gap between the inner middle cowl 50 and the knee grip member T in the upper rear portion of the air passage forming portion 52, the exhaust air A2 discharged from the air passage D to the outside of the vehicle is separated from the inner middle cowl 50. There is a risk of flowing again into the vehicle through the gap with the knee grip member T.
On the other hand, if the inner middle cowl 50 extends to the knee grip member T at least in the rear upper part of the air passage forming portion 52, the exhaust air A2 discharged from the air passage D to the outside of the vehicle flows into the vehicle again. It becomes difficult to happen.
In FIG. 4, a region indicated by an imaginary line T <b> 2 is a joint (including contact or proximity) region between the upper side of the inner middle cowl 50 and the knee grip member T.

As shown in FIGS. 4 and 6, the inner middle cowl 50 is disposed between the air passage formation portion 52 and the knee grip portion T1 toward the outer side in the vehicle width direction from the air passage formation portion 52 toward the knee grip portion T1. It has the overhang | projection part 53 which protrudes toward.
If comprised in this way, since the exhaust wind A2 which may flow toward the knee grip part from the wind path D is guided to the vehicle width direction outer side by the overhang | projection part 53 (refer FIG. 6 arrow A2), a driver | operator It will be easier to flow away from the legs

  As shown in FIGS. 2, 4, and 6, the middle cowl 40, apart from the opening 51, extends obliquely upward from the vicinity of the radiator R in the side view, and exhausts the wind A <b> 2 from the radiator R. A third cowl 70 having a slit-like opening 42 for discharging outside the vehicle and being adjacent to the inner middle cowl 50 and forming the slit-like opening 42 with the outer middle cowl 60 is provided.

If comprised in this way, since the exhaust air A2 (refer FIG. 5, FIG. 6) will also be discharged | emitted from the slit-shaped opening 42, the exhaust air A2 which passed the radiator R will be further from the side of the radiator R to the vehicle exterior. It can be discharged efficiently.
Moreover, the slit-shaped opening 42 can be formed by the outer middle cowl 60 and the third cowl 70 disposed adjacent thereto. That is, since the slit-shaped opening 42 can be formed by the edge of the outer middle cowl 60 and the edge of the third cowl 70, it is not necessary to separately prepare a cowl provided with the slit-shaped opening.
Since the slit-shaped opening 42 is formed at a position facing the lower rear side of the radiator R, the exhaust air A2 from the lower part of the radiator R can be discharged efficiently.

As shown in FIG. 8C, the inner middle cowl 50 has a guide surface 54 that guides the exhaust air A2 from the radiator R toward the outside in the vehicle width direction at the rear end portion of the slit-shaped opening 42. ing.
If comprised in this way, while the exhaust efficiency of the exhaust wind A2 to the exterior through the slit-shaped opening 42 can be improved, the exhaust wind A2 can be guide | induced to the direction away from a driver | operator's leg.

The inner middle cowl 50 is fixed to the vehicle body frame 10 at an appropriate position, and the outer middle cowl 60 is fixed to the inner middle cowl 50 or the vehicle body frame 10 at an appropriate position. The third cowl 70 is fixed to the inner middle cowl 50, the outer middle cowl 60, or the vehicle body frame 10 at an appropriate place.
That is, the inner middle cowl 50, the outer middle cowl 60, and the third cowl 70 constituting the middle cowl 40 are coupled to each other at appropriate positions and fixed to the vehicle body frame 10 to cover the vehicle side surface. ing.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be appropriately modified within the scope of the gist of the present invention.

  E: Engine, D: Airway, R: Radiator, S: Seat, T: Knee grip member, T1: Knee grip part, 10: Body frame, 30: Front cowl, 40: Middle cowl, 42: Slit-shaped opening , 50: Inner middle cowl, 51: Opening part, 52: Air passage forming part, 53: Overhang part, 54: Guide surface, 60: Outer middle cowl, 70: Third cowl.

Claims (6)

A front cowl (30) covering the front of the body frame (10), left and right middle cowls (40) covering the sides of the body frame (10),
A knee grip member (T) having a knee grip portion (T1) in front of the seat (S) on which the driver is straddled and sandwiched between the knees of the driver;
An engine (E) disposed below the knee grip member (T);
The front side of the engine (E) is covered with the left and right middle cowls (40) when viewed from the side of the vehicle, and is disposed between the left and right middle cowls (40) when viewed from the front of the vehicle. A radiator (R) that releases the heat of the engine (E) by taking in the traveling wind (A1) from the front opening (41) between and discharging it to the rear,
In a saddle-ride type vehicle equipped with
The middle cowl (40) includes an inner middle cowl (50) disposed on the inner side in the vehicle width direction, and an outer middle cowl (60) disposed on the outer side in the vehicle width direction,
The inner middle cowl (50) is located between the opening (51) that opens toward the outer middle cowl (60) on the side of the radiator (R) and the outer middle cowl (60). An air passage forming portion (52) for forming an air passage (D) to the outside of the vehicle from the radiator (R) toward the rear from the portion (51). A cowl structure for a saddle-ride type vehicle. In claim 1,
The inner middle cowl (50) has an opening (51) and an air passage forming portion (52) that are all covered with the outer middle cowl (60) in a side view of the vehicle. Cowl structure. In claim 1 or 2,
The cowl structure of a saddle-ride type vehicle, wherein the inner middle cowl (50) extends to the knee grip member (T) at least in the upper rear portion of the air passage forming portion (52). In any one of Claims 1-3,
The inner middle cowl (50) has a vehicle width between the air passage formation portion (52) and the knee grip portion (T1) as it goes from the air passage formation portion (52) to the knee grip portion (T1). A cowl structure for a saddle-ride type vehicle having a projecting portion (53) projecting outward in the direction. In any one of Claims 1-4,
The middle cowl (40), apart from the opening (51), extends obliquely upward from the vicinity of the radiator (R) to the rear in a side view, and removes the exhaust air (A2) from the radiator (R) outside the vehicle. A slit-like opening (42) for discharging to the inner middle cowl (50) and forming the slit-like opening (42) with the outer middle cowl (60). A cowl structure for a straddle-type vehicle, further comprising a cowl (70). In any one of Claims 1-5,
The inner middle cowl (50) has a guide surface (54) for guiding the exhaust air (A2) from the radiator (R) outward in the vehicle width direction at the rear end of the slit-like opening (42). A cowl structure for straddle-type vehicles, characterized by

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